注聚泵阀材料的激光熔覆强化  

Laser cladding to strengthen materials of polymer-injecting pump valve

作　　者：姜有林[1] 张大伟[2] 郭凤 

机构地区：[1]大庆石油管理局三次采油成套设备公司 [2]大庆石油学院 [3]大庆石化总厂职工大学

出　　处：《节能技术》2001年第6期10-12,共3页Energy Conservation Technology

摘　　要：本文利用扫描电镜 (SEM)、X射线衍射 (XRD)及销环式磨损试验等研究了在 2Cr13马氏体不锈钢注聚泵阀材料上激光熔覆Ni合金熔覆层的熔覆处理工艺对涂层组织和耐干滑动摩擦磨损性能的影响。Ni合金熔覆层由γ -Ni,Ni3B ,CrB ,M7C3和γ - (Ni,Fe)相组成 ,硬质硼化物、碳化物相的存在提高了涂层硬度 ,而涂层硬度最大值对应于最佳的激光扫描速度。激光熔覆Ni合金涂层可明显改善The effect of cladding technology on microstructure of the coatings and dry sliding wear behavior of laser clad Ni-based alloy on the materials of 2Cr13 martensitic stainless steel used as the polymer-injecting pump valves have been investigated by means of scanning electronic microscope(SEM),X-ray diffractometer(XRD)and pin on ring wear test.The Ni alloy coating consists of γ-Ni,Ni 3B,CrB,M 7C 3 and γ-(Ni,Fe)phases.The existence of hard borids and carbides increases hardness of the coatings.A maximum hardness value is corresponding with an optimum laser scanning speed.A significant improvement in dry sliding wear properties can be obtained by laser cladding Ni-based alloy or 2Cr13 stainless steel substrate.

关 键 词：激光熔覆 注聚泵阀 材料 耐磨性 油田设备 

分 类 号：TE980.5[石油与天然气工程—石油机械设备] TE983